Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What is wrong with my theory about universe expanding.

  1. Jan 27, 2013 #1
    Hey all,
    Just to make it clear I am in no way a scientist or physicist but a mere space enthusiast.
    Yesterday I noticed when I was making some lunch that oil in my frying pan starts to ''run away'' from the center of pan towards outer side when heat gets just a little bit higher, since pan is covered in the most slippery thing on Earth, teflon, it occurred to me that I can use that as a model to simulate 0 gravity and vacuum in a 2d form of observing. I added small crunches and the effect was exactly the same, the hotter the center was, the ''particles'' would run away from center faster. So here comes the theory about what dark energy might be. A simple remnant of energy outbursts from exploding stars or colliding galaxies increase temperature of empty space. Is it possible that that small amount of heat is enough to push everything apart until the point where that heat is conflicted with gravity and gravity wins? For that to be slightly less complicated for you to understand since I am having hard time to explain that mess in my head, think about matter in space as one thing, let it be A, and empty space as other thing, the B. B expands on itself because it is slowly heating thus ''carrying'' the A away from each other. Gravity is stronger and it overcomes that heat but bound to matter and it's reach dissipates with distance. Disprove me and let me carry on with my regular life please ^^
  2. jcsd
  3. Jan 27, 2013 #2


    User Avatar
    2017 Award

    Staff: Mentor

    This temperature is about 3K, and decreasing. Stars and other massive objects do not contribute in a significant way. In General Relativity, such an energy density slows expansion due to gravity (something you do not have in your pan in a significant way). As a result, in the early universe (where gravity<->energy density did win), expansion slowed down. Currently, in our cold universe, dark energy wins, and expansion accelerates.
  4. Jan 27, 2013 #3


    User Avatar
    Science Advisor
    Gold Member

    The biggest problem is posting it on the wrong website.
  5. Jan 27, 2013 #4
    [QUOTE So here comes the theory about what dark energy might be. A simple remnant ...][/QUOTE]

    could be...but not so 'simple'. If dark energy exists at all, it is hypothesized it was present at the big bang or shortly after....

    try reading a bit here:

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook